20873026 has 8 divisors (see below), whose sum is σ = 31432140. Its totient is φ = 10395648.

The previous prime is 20873003. The next prime is 20873051. The reversal of 20873026 is 62037802.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 632025 = 4499^2 + 795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20872985 and 20873003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19791 + ... + 20818.

Almost surely, 2^20873026 is an apocalyptic number.

20873026 is the 2890-th centered pentagonal number.

20873026 is a deficient number, since it is larger than the sum of its proper divisors (10559114).

20873026 is a wasteful number, since it uses less digits than its factorization.

20873026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40868.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20873026 is about 4568.7006905684. The cubic root of 20873026 is about 275.3352429415.

The spelling of 20873026 in words is "twenty million, eight hundred seventy-three thousand, twenty-six".